Concrete floor construction.



J. A. FERGUSON.

CONCRETE FLOOR CONSTRUCTION.

APPLICATION FILED APR.30.1909

Patented Jan. 21, 1913.

3 SHEETSSHEBT 1.

w; tn coma J. A. FERGUSON.

CONCRETE FLOOR CONSTRUCTION.

APPLICATION TILED APR. 30, 1909.

Patented Jan. 21, 1913 3 SHEETS-SHEET 3.

Attorneys CONCRETE FLOOR CONSTRUCTION.

Specification of Letters Patent.

atented am. at, iota.

original application filed August 14, 1908, Serial No. 448,600. Divided and this application filed din-i1 30,

serial No. 493,168.

To all whom it may concern:

Be it known that l, JOHN A. Fnnouson, a citizen of the United States, residing at Denver, in the county of Denver and State of Colorado, have invented a new and useful Concrete Floor Construction, of which the following is a specification.

This invention relates to concrete floors for use in artificial stone, brick, or other masonry structures and it is more particularly a division of an application filed in the United States Patent Oilice by me on August 14, 1908, Serial No. 448,600.

The object of the invention is to provide a concrete floor in which the sup orting joists are effectually anchored tot e side walls of the building and are maintained in spaced relation by an intermediate filling of cement or other similar plastic material.

A further object is to reinforce and strengthen the floor by j the provision of spaced transverse bars which are embedded in the concrete between the joists.

With these and other objects in view the invention consists in certain novel details of construction and combinations of parts hereinafter more fully described and pointed out in the claims. I

in the accom anying drawings the preferred form of the invention has been shown.

In said drawings Fi re 1 is a perspective view partly in section of a portion of a building provided with a floor constructed in accordance with the present invention, parts of the floor being broken away to more clearly illustrate the construction thereof. Fig. 2 is a top plan view. Fig. 3 is a transverse section through a portion of a modified formof floor. Fig. 4 is a view similar to Fig. 1 and showing said modified form of floor. Fig. 5 is an enlarged transverse section through one of the joists shown in Fig. 4. Fig. 6 is an enlarged transverse section through one of the joists shown in Fig. 1.

Similar numerals of reference indicate corresponding parts in all of the figures of the drawings.

The improved floor construction forming the subject matter of the presentinvention may be used in connection with brick, stone ul other masonry structures and by way of illustration is shown in connection with a building in which the side, partition and. end walls thereof are formed of artificial building, and at the partition 7, as indicated at 8, thereby to reinforce and strengthen the building and assist in binding the side, partition and end walls-0f the latter together. The fiat metallic strips constituting the binding member v8 are preferably spaced inwardly from the inner faces of the blocks 5 to form supports for the terminals of the joists 9, as best shown in Fig. 20f the drawings.

The joists 9 are preferably formed of wood and are each inclined or beveled in opposite directions to form a relatively nar-' row bearing surface 10 at the lower longitudinal edge the'reof'for engagement with the lathe or with a strip of wire gauze, netting or other foraminous material, indicated at 11. Interposed between the 'oists 9 is a concrete filling 12 and embedde in the concrete between each of the joists are a plurality of s aced reinforcing bars or rods 13, the opposite ends of which restu on the adjacent flat bars constituting the inding member 8. The concrete fillin 12 is preferably troweled ofl flush withthe upper longitudinal edges of the joists 9 so that tongue and grooved boards or other suitable floor finish 14 may be nailed or otherwise rigidly secured thereto. The side walls of thGJOlStS form substantially V shaped pockets for the reception of a cement or concrete filling 12, the inclined walls of said joists serving to prevent accidental displacement of the concrete filling. y

In constructing the building the blocks 5 are disposed in superposed courses and arranged to break joint, withthe wings 6 of the several blocks disposed in alinement to form a series of vertical lines around the inner face of the building. At each floor or story of the building, or atother spaced intervals one or more binding members 8 are placed upon the wings 6 of the blocks conas Y 9 are preferably inclined or beveled at 9' to ends stituting the side, end and partition walls, and the blocks of the next succeeding course placed in position thereon, as best shown mFig. 1 of the drawings, the mortar between the wings of mating blocks serving to assist in reventing accidental dis lacement of the binding member. The joists 9 are then laced in position with the opposite ereof restlngon the binding member 8 and thelaths or plaster supporting ma terial 11'nailed, stapled'or otherwise fastened to the beveled edges of said joists, the reinforcing rods bein subsequently laced in ition between t e joists with t e o poslte ends of the rods resting on the bin mg member. A temporary sheathing or I flooring is then nailed to the lower or inclined edges of the joists 9 and the concrete 12 introduced between the joists and tamped in the usual manner, the upper surface of the concrete being troweled ofi flush with the jgists so asto'permit the tongue and ooved ards or other suitable floor finis to be of said joists. The lower portion of the concrete will rest upon thesupportingmatrial 11 and be properly sugported thereby. After the concrete has su ciently set the temporary floor or sheathing is removed and the lower surface of the floor structure coated with a layer of plaster or cement indicated at 15, the wire netting 11 servingto assist in retaining the plaster in position on the lower face of the floor structure and also to assist the joists in holding the concrete in place. If desired, however, the wire netting 11 ma be omitted and the plaster applied directl to the concrete, as indicated at 15' in *ig. 3 of the drawings.

When joists 9 having oppositely disposed parallel faces are employed in the construction of the floor, suitable strips of expanded metal, wire nettin .or the like may be applied to opposite aces of the joists, as indicated at 16 in Fig. 3, in order to assist in retaining the concrete within the pockets formed between said joists.

By beveling the lower portions of the joists shown in Figs. 1 and 4, very narrow edges are presented to the temporary ceiling or flooring used in the construction v of the concrete floor and, when the. concrete is placed upon this temporary ceiling it conceals the greater portion of the lower edge of each joist, only the narrow space between the two beveled faces being exposed. The

joists are thus considerably reinforced by those portions of the concrete extending under the beveled faces thereof and are locked struction and is not only ca able of sustaining enormous weight but a so assists in reinforcing and strengthening the side walls and prevents bulging or spreading thereof.

It 15 of course'to be un erstood that the structure herein described can be used in the formation of roofs as well as floors, the onl difi' erence being that in lieu of the socal ed floor finish, a covering of roof tiles, shingles, or any othersuitable material may be employed and by the use of the term floor finish it is intended to cover any such material.

What is claimed is:

L In building construction, the combination with walls and binding members supported thereb of floor supporting joists resting on sai members and each having its lower longitudinal edge inclined or beveled in opposite directions to form a relatively narrow bearing face, a concrete filling interposed between the joists, spaced reinforccrete filling interposed between the joists,

paced reinforcing elements embedded in e concrete filling but resting on the binding members, concrete supporting material secured to the joists, and a finish secured to the upper longitudinal. edges of the joist= and covering the joists and concrete.

In testimony that I .claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.

JOHN A. FERGUSON.

Witnesses:

KARRIE FERGUSON, KATE Qumnsr. 

